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There are currently no product reviews.
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perfect copy, im very satisfied, i was need the diagram over the powersupply and
the copy was very sharp
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This is exactly the service manual I needed.
Complete with all schematics, partslists, PCB layouts and alignment instructions.
This manual covers both the T-4970 en T-488F Onkyo tuner.
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IF PRINTED CIRQUIT BOARD WIRING VIEW WAS ONE TONE LIGHTER, THEN 5 STAR RANK HAS TO BE MY CHOISE.
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Very usefull, good quality drawings !
Muito útil encontrei todas as informações necessárias.
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Wanting to repair a neighbours tape recorder I needed the necessary information, it makes it easier. Although the service manual is described as "Language : English" To my dismay I found that it is entirely written in German, a language I do not understand. At least I now have the schematics which will help of sorts. I may not use this service again due to the laguage difficulty after all when it states English you do not expect it to be entirely in another language.
MultiPASS C755 Chapter 3: Maintenance & Service
4.3 Errors not Shown on the Display 4.3.1 General errors
� The unit does not power on. (1) Check the power cord connection. (2) Check the connection between the PCNT board (J204) and power supply unit. (3) Check the power supply unit's fuse (F1). (4) Replace the power supply unit. � The display looks abnormal. Nothing is displayed. (1) Check the connection between the Operation panel unit and SCNT board (JPANEL1). (2) Replace the Operation panel unit. (3) Replace the SCNT board. Part of the LCD panel does not display anything. (1) Check the connection between the Operation panel unit and SCNT board (JPANEL1). (2) Replace the Operation panel unit. (3) Replace the SCNT board. � The buttons do not work. (1) If the test mode can be used, check for faulty buttons. (2) Check the connection between the Operation panel unit and SCNT board (JPANEL1). (3) Replace the Operation panel unit. (4) Replace the SCNT board. � No sound from the speaker (1) Check the connection of the speaker and SCNT board (JSPK1). (2) Replace the speaker. (3) Replace the SCNT board.
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